package com.jawsmith.springsecurity;
import java.security.Key;

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;

public class EncryptDecryption {
    
     private static final String ALGO = "AES";
    private static final byte[] keyValue = 
        new byte[] { 'T', 'h', 'e', 'B', 'e', 's', 't','S', 'e', 'c', 'r','e', 't', 'K', 'e', 'y' };
    public static String encrypt(String Data) throws Exception {
        Key key = generateKey();
        Cipher c = Cipher.getInstance(ALGO);
        c.init(Cipher.ENCRYPT_MODE, key);
        byte[] encVal = c.doFinal(Data.getBytes());
        String encryptedValue = new BASE64Encoder().encode(encVal);
        return encryptedValue;
    }

    /*public static String decrypt(String encryptedData) throws Exception {
        Key key = generateKey();
        Cipher c = Cipher.getInstance(ALGO);
        c.init(Cipher.DECRYPT_MODE, key);
        byte[] decordedValue = new BASE64Decoder().decodeBuffer(encryptedData);
        byte[] decValue = c.doFinal(decordedValue);
        String decryptedValue = new String(decValue);
        return decryptedValue;
    }*/
    private static Key generateKey() throws Exception {
        Key key = new SecretKeySpec(keyValue, ALGO);
        return key;
}
    /*
    public static void main(String[] args) throws Exception {
    	ApplicationContext appContext = 
    		new ClassPathXmlApplicationContext("spring/config/BeanLocations.xml");
    	//SystemUserMethods sysUserMethods = (SystemUserMethods)appContext.getBean("systemUserBean");
    	//SystemUser sUser;
    	//sUser= (SystemUser)sysUserMethods.findByName("renew");
       // String password = "mypassword";
     // String passwordEnc = EncryptDecryption.encrypt("Newpass$1234");
     //   String passwordDec = EncryptDecryption.decrypt(password);

       // System.out.println("Plain Text : " + password);
       // System.out.println("Encrypted Text : " + passwordEnc);
        //System.out.println("Decrypted Text : " + passwordDec);
    }*/

    
}

